You lost 93 Premium too, that stuff is available everywhere down here.
On the other hand, I have no gas available to me that is labeled Ethanol Free.
Because of the water absorption, I only buy gas for the mower about a gallon at a time. It can sit all summer and works fine, but never over the winter, or the mower barely runs. I try to time it so I run out in October-ish. The St. Augustine goes dormant from November to February. By March 1 it's usually time to start mowing again, with a fresh batch of RUG.